from smolagents import CodeAgent,DuckDuckGoSearchTool, HfApiModel,load_tool,tool
import datetime
import requests
import pytz
import yaml
from tools.final_answer import FinalAnswerTool

from Gradio_UI import GradioUI

@tool
def fibonacci_series_string(n:int)-> str:
    """
    A tool that generates a Fibonacci series up to n terms and returns it as a comma-separated string.

    Args:
        n: The number of Fibonacci terms to generate (must be a non-negative integer).

    Returns:
        A string containing the Fibonacci series, with items separated by commas.
        Returns an empty string if n is 0.
        Raises ValueError if n is negative.

    Examples:
        fibonacci_series_string(5) == "0,1,1,2,3"
        fibonacci_series_string(0) == ""
    """

    if n < 0:
        raise ValueError("n must be a non-negative integer.")

    if n == 0:
        return ""

    fib_series = []
    a, b = 0, 1

    for _ in range(n):
        fib_series.append(str(a))  # Append as string
        a, b = b, a + b

    return ",".join(fib_series)

@tool
def get_current_time_in_timezone(timezone: str) -> str:
    """A tool that fetches the current local time in a specified timezone.
    Args:
        timezone: A string representing a valid timezone (e.g., 'America/New_York').
    """
    try:
        # Create timezone object
        tz = pytz.timezone(timezone)
        # Get current time in that timezone
        local_time = datetime.datetime.now(tz).strftime("%Y-%m-%d %H:%M:%S")
        return f"The current local time in {timezone} is: {local_time}"
    except Exception as e:
        return f"Error fetching time for timezone '{timezone}': {str(e)}"


final_answer = FinalAnswerTool()

model = HfApiModel(
max_tokens=2096,
temperature=0.5,
model_id='https://pflgm2locj2t89co.us-east-1.aws.endpoints.huggingface.cloud',
custom_role_conversions=None,
)


# Import tool from Hub
image_generation_tool = load_tool("agents-course/text-to-image", trust_remote_code=True)

with open("prompts.yaml", 'r') as stream:
    prompt_templates = yaml.safe_load(stream)
    
agent = CodeAgent(
    model=model,
    tools=[final_answer, get_current_time_in_timezone, fibonacci_series_string],
    max_steps=6,
    verbosity_level=1,
    grammar=None,
    planning_interval=None,
    name=None,
    description=None,
    prompt_templates=prompt_templates
)


GradioUI(agent).launch()